JPH0526366U - Steps between printing units - Google Patents

Abstract

(57) [Abstract] [Purpose] It is an object of the present invention to provide a step between printing units that allows the work space to be entirely opened by an easy operation without providing a support. [Structure] A step plate 10 is provided which allows the pins 13 at the four corners to engage with the U-shaped grooves 9 of the brackets 5 to 8 from the upper end opening in a rotatable and detachable manner. Pins 15 are provided to fix the step plate 10 in the upright state and the fallen state, respectively.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a step between printing units which is supported by a printing unit such as a multi-color printing press so as to be openable and closable so as to cover the lower printing cylinder, etc. It is about.

[0002]

[Prior Art]

 Between the printing units of the multi-color printing machine, openable and closable steps that cover the lower printing cylinder are supported by the left and right frames, and are used for ink replacement, maintenance and inspection of the upper rollers, etc. To do this, use this step as a scaffold. Also, when maintaining or cleaning the printing cylinder below the step, this step is opened or removed to perform the work.

As this type of inter-unit step, conventionally, two step plates that open and close with a hinge as a fulcrum are provided between printing units, and among these, on the paper ejection side, which is relatively frequently used for maintenance and cleaning. A large step plate was used and a small step plate on the paper feed side, which is relatively infrequent for maintenance and cleaning, was used. However, there is an opportunity to maintain and clean the water supply device on the paper feed side as well. Since there are many places, there is a problem that the work is difficult to perform if the step plate is small.

In order to solve such a problem, there have been proposed devices disclosed in, for example, Japanese Utility Model Laid-Open No. 62-142528 and Japanese Utility Model Laid-Open No. 1-166529. In all of these devices, a step plate is pivotally supported at the other end of a support such as a support bar or a support frame whose one end is pivotally supported at a hinge or the like. When only the plate is opened and the paper feeding side is opened, the step plate and the support are integrally opened.

[0005]

[Problems to be Solved by the Invention] However, in such a conventional step between printing units, since the support body remains supported between the printing units when only the step plate is opened, an ink-jet device or the like is used. In a double-sided web-fed rotary printing machine equipped with two sets of upper and lower printing devices, the support does not get in the way when an operator enters the lower side, and it is difficult to get injured by hitting the head. There is a risk of doing so and is dangerous. Further, when the step plate and the supporting body are integrally opened and closed, there is a problem that it is heavy and requires a lot of labor and the operability is poor.

The present invention has been made in view of the above points, and provides a step between printing units in which the printing units can be completely opened by an easy operation without providing a support. The purpose is to

[0007]

[Means for Solving the Problems]

 In order to achieve such an object, in the present invention, in the step between printing units, the pins at the four corners are slidably contacted with the left and right frames and extend between the front and rear printing units, and are inserted into the grooves of the frame side supporting member. A step plate rotatably and removably engaged with the upper end opening, and a fixing member supported by each of the support members to fix the step plate in the upright state and the fall state respectively are provided.

[0008]

[Action]

 If you want to open the front side of the step plate, if you want to open the back side of the step plate, and if you want to open the back side of the step plate, stand the step plate upright and fix it with a fixing member, then perform maintenance work. After the work is finished, release the fixing by the fixing member and lay down the step board, and then fix it by the fixing member.

[0009]

【Example】

 1 to 7 show an embodiment of steps between printing units according to the present invention, FIG. 1 is a front view of steps between printing units, FIG. 2 is a plan view of the same, and FIG. 3 is a plan view of a step plate supporting portion. 4 is a front view of the same, FIG. 5 is a sectional view taken along line VV of FIG. 4, FIG. 6 is a plan view of the holder, and FIG. 7 is a front view of the same. In the figure, frames 1 and 2 are joined and provided on the driving side of the printing machine, and frames 3 and 4 are provided on the operating side. In the case of the present embodiment, among the adjoining printing units, the one having the frames 2 and 4 is the paper feeding side of the machine base, and the one having the frames 1 and 3 is the paper feeding side of the machine base. ..

Brackets 5 to 8 having different shapes are bolted to the frames 1 to 4, and the brackets 5 to 8 are each provided with a U-shaped groove 9 opening upward. ing. Reference numeral 10 is a step plate formed in a rectangular plate shape having standing edges 10a on three sides. Reinforcing ribs 10b and 10c are formed on the back surface of the step plate, and the operating side rib 10c is formed. The handle 11 is fixed. In addition, a holder 12 which is enlarged and shown in FIGS. 6 and 7 is bolted to the four corners of the back surface of the step plate 10, and the pin 13 inserted and planted in the pin hole 12a on the side surface is fixed. , Is fitted in the U-shaped groove 9 so as to be rotatable and slidable.

An S-shaped pin receiver 14 is fixed to the side surface of each of the operating side brackets 7 and 8, and a pin with a knob 15 a is inserted into the pin hole of the pin receiver 14. The bracket 15 is fitted in the pin holes 5a to 7a (only 7a is shown) of the brackets 7 and 8 so as to be movable back and forth. Further, the tip chamfered portion 15b of the pin 15 is engaged with an arcuate groove 12b provided in the holder 12, and the pin 15 is provided between the washer 16 fixed to the pin 15 and the pin receiver 14. A compression coil spring 17 is interposed to urge the groove in the groove 12b. 12c is an end face where the groove 12b is open.

The operation of the steps between printing units configured as described above will be described. When the step plate 10 is closed as shown by the solid line in FIG. 1, as shown in FIG. 4, the pin 13 serving as the open / close fulcrum of the step plate 10 is engaged with the operation side bracket 9, and the pin 15 is The tip end chamfered portion 15b is engaged with the chamfered portion of the end of the arc-shaped groove 12a of the holder 12 by the elastic force of the compression coil spring 17, and the lifting of the step plate 10 is restricted.

From this state, for example, when opening the step plate 10 in order to open the discharge side, which is the left side in FIG. 2, the worker stands on the operation side of the machine stand, grasps the knob 15a, and holds the pin 15 in place. When the compression coil spring 17 is pulled toward the front against the elastic force, the lifting restriction of the pin 15 is released, so that the grip 11 is gripped, and the step plate 10 is rotated and opened with the pin 13 as a fulcrum. As shown by the chain line 10A in FIG. 1, when the step plate 10 is opened by a predetermined angle, the pin 15 extends from the arcuate groove 12a onto the end face 12c and expands by the elastic force of the compression coil spring 17, so that the step plate 10 is The rotation is restricted at the position indicated by the chain line 10A and the vehicle stops. By doing so, the discharge side of the printing step device is entirely opened, so that maintenance work and the like can be easily performed. Note that, in FIG. 1, a portion where the step plate 10B on the paper discharge side is also opened is shown by a chain line, but the opening / closing operation thereof is the same as the above, and therefore the description thereof is omitted.

When closing the step plate 10A after maintenance work or the like, the knob 15a is grasped and the pin 15 is pulled toward the front against the elastic force of the compression coil spring 17 so that the tip chamfered portion 15b thereof has an arc shape. When the step plate 10 is closed by engaging with the groove 12a, the tip chamfered portion 15b of the pin 15 slides into and engages with the chamfered end portion of the arcuate groove 12a when the closing is completed. Lifting is regulated.

[0015]

[Effect of the device]

 As will be apparent from the above description, according to the present invention, in the step between printing units, the four corner pins are slidably in contact with the left and right frames and extend between the front and rear printing units, and the pins at the four corners are formed in the groove of the frame side supporting member. A step plate which is rotatably and removably engaged with the upper end opening, and a fixing member which is supported by each of the supporting members and fixes the step plate in an upright state and a fall state respectively. As a result, one of the front and rear working spaces can be selectively opened with one step plate, so that the structure is simplified and the operability is improved. In addition, since the support member does not remain in the work space even when the step plate is opened, the work space is expanded and workability is improved, and the support member is not touched, improving safety. ..

[Brief description of drawings]

FIG. 1 is a front view of steps between printing units.

FIG. 2 is a plan view of steps between printing units.

FIG. 3 is a plan view of a step plate support portion.

FIG. 4 is a front view of a step plate support portion.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a plan view of a holder.

FIG. 7 is a front view of a holder.

[Explanation of symbols] 1 frame 2 frame 3 frame 4 frame 5 bracket 6 bracket 7 bracket 8 bracket 9 U-shaped groove 10 step plate 12 holder 12a pin hole 12b groove 13 pin 15 pin 17 compression coil spring

Claims (1)

[Scope of utility model registration request] 1. A step in which pins at four corners are slidably contacted with the left and right frames and extend between the front and rear printing units and are rotatably and removably engaged with grooves of a frame side supporting member from an upper end opening. An inter-printing-unit step comprising: a plate; and a fixing member that is supported by each of the supporting members and fixes the step plate in an upright state and a falling state, respectively.